Back Propagation

An abbreviation for “Backwards Propagation Of Errors.”
This is a computer algorithm used in supervised training of neural networks
for calculating the mathematical derivatives of the error function with
respect to the weights of the network. The technique is mainly used to
adjust the weights and other adaptive parameters of the network during
training, so the underlying structure of the data is learned over a finite
number of iterations. See alsoSTATISTICAAutomated Neural Networks.